The Allahabad High Court has cleared dentist couple Nupur and Rajesh Talwar in the murder case of their teen daughter, Aarushi Talwar.
The High Court says the Central Bureau of Investigation had failed to prove "guilt beyond reasonable doubt".
Aarushi was found dead in her bedroom, just days before she turned 14, with her throat slit at her home in Noida, near Delhi in 2008.
The police initially suspected Hemraj, the family's Nepalese domestic help, for her murder, but two days later he was discovered dead on the terrace of the same building.
The Talwars were sentenced to life in prison in 2013.
They have appealed against their conviction.